1 // Copyright 2009 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 //go:build amd64 && linux 6 7 package unix 8 9 //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) 10 //sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64 11 //sys Fchown(fd int, uid int, gid int) (err error) 12 //sys Fstat(fd int, stat *Stat_t) (err error) 13 //sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_NEWFSTATAT 14 //sys Fstatfs(fd int, buf *Statfs_t) (err error) 15 //sys Ftruncate(fd int, length int64) (err error) 16 //sysnb Getegid() (egid int) 17 //sysnb Geteuid() (euid int) 18 //sysnb Getgid() (gid int) 19 //sysnb Getrlimit(resource int, rlim *Rlimit) (err error) 20 //sysnb Getuid() (uid int) 21 //sys Ioperm(from int, num int, on int) (err error) 22 //sys Iopl(level int) (err error) 23 //sys Lchown(path string, uid int, gid int) (err error) 24 //sys Listen(s int, n int) (err error) 25 26 func Lstat(path string, stat *Stat_t) (err error) { 27 return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW) 28 } 29 30 //sys MemfdSecret(flags int) (fd int, err error) 31 //sys Pause() (err error) 32 //sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 33 //sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 34 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) 35 //sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK 36 37 func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) { 38 var ts *Timespec 39 if timeout != nil { 40 ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000} 41 } 42 return pselect6(nfd, r, w, e, ts, nil) 43 } 44 45 //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) 46 //sys setfsgid(gid int) (prev int, err error) 47 //sys setfsuid(uid int) (prev int, err error) 48 //sys Shutdown(fd int, how int) (err error) 49 //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) 50 51 func Stat(path string, stat *Stat_t) (err error) { 52 // Use fstatat, because Android's seccomp policy blocks stat. 53 return Fstatat(AT_FDCWD, path, stat, 0) 54 } 55 56 //sys Statfs(path string, buf *Statfs_t) (err error) 57 //sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) 58 //sys Truncate(path string, length int64) (err error) 59 //sys Ustat(dev int, ubuf *Ustat_t) (err error) 60 //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) 61 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 62 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 63 //sysnb getgroups(n int, list *_Gid_t) (nn int, err error) 64 //sysnb setgroups(n int, list *_Gid_t) (err error) 65 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) 66 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) 67 //sysnb socket(domain int, typ int, proto int) (fd int, err error) 68 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) 69 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 70 //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 71 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) 72 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) 73 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) 74 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) 75 //sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) 76 77 //sys futimesat(dirfd int, path string, times *[2]Timeval) (err error) 78 79 func Gettimeofday(tv *Timeval) (err error) { 80 errno := gettimeofday(tv) 81 if errno != 0 { 82 return errno 83 } 84 return nil 85 } 86 87 func Time(t *Time_t) (tt Time_t, err error) { 88 var tv Timeval 89 errno := gettimeofday(&tv) 90 if errno != 0 { 91 return 0, errno 92 } 93 if t != nil { 94 *t = Time_t(tv.Sec) 95 } 96 return Time_t(tv.Sec), nil 97 } 98 99 //sys Utime(path string, buf *Utimbuf) (err error) 100 //sys utimes(path string, times *[2]Timeval) (err error) 101 102 func setTimespec(sec, nsec int64) Timespec { 103 return Timespec{Sec: sec, Nsec: nsec} 104 } 105 106 func setTimeval(sec, usec int64) Timeval { 107 return Timeval{Sec: sec, Usec: usec} 108 } 109 110 func (r *PtraceRegs) PC() uint64 { return r.Rip } 111 112 func (r *PtraceRegs) SetPC(pc uint64) { r.Rip = pc } 113 114 func (iov *Iovec) SetLen(length int) { 115 iov.Len = uint64(length) 116 } 117 118 func (msghdr *Msghdr) SetControllen(length int) { 119 msghdr.Controllen = uint64(length) 120 } 121 122 func (msghdr *Msghdr) SetIovlen(length int) { 123 msghdr.Iovlen = uint64(length) 124 } 125 126 func (cmsg *Cmsghdr) SetLen(length int) { 127 cmsg.Len = uint64(length) 128 } 129 130 func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) { 131 rsa.Service_name_len = uint64(length) 132 } 133 134 //sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error) 135 136 func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error { 137 cmdlineLen := len(cmdline) 138 if cmdlineLen > 0 { 139 // Account for the additional NULL byte added by 140 // BytePtrFromString in kexecFileLoad. The kexec_file_load 141 // syscall expects a NULL-terminated string. 142 cmdlineLen++ 143 } 144 return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags) 145 } 146